ABSTRACT. van Drongelen S, van der Woude LH, Janssen TW, Angenot EL, Chadwick EK, Veeger DH. Mechanical load on the upper extremity during wheelchair activities. Arch Phys Med Rehabil 2005;86:1214-20.Objective: To determine the net moments on the glenohumeral joint and elbow joint during wheelchair activities.Design: Kinematics and external forces were measured during wheelchair activities of daily living (level propulsion, riding on a slope, weight-relief lifting, reaching, negotiating a curb) and processed in an inverse dynamics biomechanic model.Setting: Biomechanics laboratory. Participants: Five able-bodied subjects, 8 subjects with paraplegia, and 4 subjects with tetraplegia.Interventions: Not applicable. Main Outcome Measure: Net moments on the glenohumeral joint and elbow joint.Results: Peak shoulder and elbow moments were significantly higher for negotiating a curb and weight-relief lifting than for reaching, level propulsion, and riding on a slope. Overall, the elbow extension moments were significantly lower for subjects with tetraplegia than for those with paraplegia.Conclusions: The net moments during weight-relief lifting and negotiating a curb were high when compared with wheelchair propulsion tasks. Taking the effect of frequency and duration into account, these loads might imply a considerable risk for joint damage in the long term.Key Words: Activities of daily living; Biomechanics; Elbow; Rehabilitation; Shoulder; Wheelchairs. © 2005 by American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and RehabilitationI N HANDRIM WHEELCHAIR USERS, the upper extremities are at serious risk of overuse injuries. Wheelchair use requires continuous use of the upper extremities, not only for mobility but also for transfers, weight-relief lifts, and reaching activities. Studies 1,2 have shown that shoulder pain and impingement frequently occur among people with a spinal cord injury (SCI). Pain is experienced during wheelchair-related activities of daily living (ADLs), such as wheelchair propulsion and performing transfers. Because these activities are essential for functional independence, quality of life, and even the life expectancy of people after an SCI, 3 evaluating the mechanical load on the shoulder is important to an understanding of the mechanisms that may cause upper-extremity joint degeneration. Factors that have been mentioned as contributors to the development of shoulder complaints are the relatively high load and high frequency of this load on the shoulder during wheelchair propulsion. 4 In addition, and possibly even more important, the load on the shoulder during other wheelchairrelated tasks, such as transfers and weight-relief lifts, has been mentioned. [5][6][7] In our study, we used net moments around the elbow and the glenohumeral joint (GHJ) to quantify the mechanical load on those joints. Net joint moments are generally used to analyze (working) conditions and to classify these conditions. 8 To show the high loading at the shoulder, studies 9-12 have ...
Study design: Prospective cohort study. Objectives: To study upper extremity musculoskeletal pain during and after rehabilitation in wheelchair-using subjects with a spinal cord injury (SCI) and its relation with lesion characteristics, muscle strength and functional outcome. Setting: Eight rehabilitation centers with an SCI unit in the Netherlands. Methods: Using a questionnaire, number, frequency and seriousness of musculoskeletal pain complaints of the upper extremity were measured. A pain score for the wrist, elbow and shoulder joints was calculated by multiplying the seriousness by the frequency of pain complaints. An overall score was obtained by adding the scores of the three joints of both upper extremities. Muscle strength was determined by manual muscle testing. The motor score of the functional independence measure provided a functional outcome. All outcomes were obtained at four test occasions during and 1 year after rehabilitation. Results: Upper extremity pain and shoulder pain decreased over time (30%) during the latter part of in-patient rehabilitation (Po0.001). Subjects with tetraplegia (TP) showed more musculoskeletal pain than subjects with paraplegia (PP) (Po0.001). Upper extremity pain and shoulder pain were significantly inversely related to functional outcome (Po0.001). Muscle strength was significantly inversely related to shoulder pain (Po0.001). Musculoskeletal pain at the beginning of rehabilitation and BMI were strong predictors for pain 1 year after in-patient rehabilitation (Po0.001). Conclusions: Subjects with TP are at a higher risk for upper extremity musculoskeletal pain and for shoulder pain than subjects with PP. Higher muscle strength and higher functional outcome are related to fewer upper extremity complaints.Spinal Cord (2006) 44, 152-159.
Abstract-This study describes the length of stay (LOS) and functional outcome of spinal cord injury (SCI) in the Netherlands and its determinants. Data of 157 patients from eight rehabilitation centers were available. Mean age was 40.0 years and 76.4% were traumatic injuries, 39.8% had tetraplegia, and 69.9% had a motor complete SCI. Median LOS was 240 days (interquartile range 164-322). Median motor Functional Independence Measure (FIM) scores at discharge were 37.3 for persons with complete tetraplegia and 69.7 for persons with complete paraplegia. Level and completeness of injury, bed rest because of pressure sores, and LOS were predictors of motor FIM scores. Duration of SCI rehabilitation in the Netherlands is long compared with the literature. Functional outcome appears slightly better in persons with complete tetraplegia, but not in persons with complete paraplegia when compared with data from the United States. International studies are necessary to reveal strengths and weaknesses of SCI rehabilitation systems in different countries.
Study design: A multicenter prospective cohort study. Objective: To compare the demographic data of the included population with other studied spinal cord injury (SCI) populations in the international literature. Setting: Eight Dutch rehabilitation centers with a specialized SCI unit. Methods: A total of 205 individuals with SCI participated in this study. Information about personal, lesion and rehabilitation characteristics were collected at the beginning of active rehabilitation by means of a questionnaire. Results: The research group mainly consisted of men (74%), of individuals with a paraplegia (59%), and had a complete lesion (68%). The SCI was mainly caused by a trauma (75%), principally due to a traffic accident (42%). The length of clinical rehabilitation varied between 2 months and more than a year, which seemed to be dependent on the lesion characteristics and related comorbidity. Conclusions: The personal and lesion characteristics of the subjects of the multi-center study were comparable to data of other studies, although fewer older subjects and subjects with an incomplete lesion were included due to the inclusion criteria 'age' and 'wheelchair-dependent'. The length of stay in rehabilitation centers in The Netherlands was longer compared to Denmark but much longer than in eg Australia and the USA.
ABSTRACT. van Drongelen S, van der Woude LH, Janssen TW, Angenot EL, Chadwick EK, Veeger DH. Glenohumeral contact forces and muscle forces evaluated in wheelchair-related activities of daily living in able-bodied subjects versus subjects with paraplegia and tetraplegia. Arch Phys Med Rehabil 2005;86: 1434-40.Objective: To estimate the differences in glenohumeral contact forces and shoulder muscle forces between able-bodied subjects and subjects with paraplegia and tetraplegia during wheelchair-related activities of daily living (ADLs).Design: Kinematics and external forces were measured during wheelchair ADLs (level propulsion, weight-relief lifting, reaching) and processed by using an inverse dynamics 3-dimensional biomechanical model.Setting: Biomechanics laboratory. Participants: Five able-bodied subjects, 8 subjects with paraplegia, and 4 subjects with tetraplegia (Nϭ17).Interventions: Not applicable. Main Outcome Measures: Glenohumeral contact forces and shoulder muscle forces.Results: Peak contact forces were significantly higher for weight-relief lifting compared with reaching and level propulsion (PϽ.001). High relative muscle force of the rotator cuff was seen, apparently needed to stabilize the joint. For weight-relief lifting, total relative muscle force was significantly higher for the tetraplegia group than for the able-bodied group (Pϭ.022).Conclusions: Glenohumeral contact forces were significantly higher for weight-relief lifting and highest over the 3 tasks for the tetraplegia group. Without taking paralysis into account, more muscle force was estimated for the subjects with tetraplegia during weight-relief lifting.
Study design: Retrospective descriptive study. Objectives: (1) To obtain an overall appraisal of patients with epidural metastatic spinal cord compression (SCC) (1) Clinical records were reviewed and demographic, clinical and functional data were collected according to a protocol. The date of admittance to the SCU, rehabilitation goals, date of discharge and date of death were recorded. (2) The odds ratio (OR) was calculated for all determinants on admittance to the SCU in order to find indicators that predict survival 41 year after discharge from the SCU. An OR X2 was considered to be clinically significant. Results: In total, 131 patients with epidural metastatic SCC were admitted. In all, 117 clinical records were retrieved and 97 clinical records provided complete data. The average age on admittance was 58 years. Among the patients 53% were male. The average Barthel score on admittance was 7.2/20 points. The average length of stay in the SCU was 104 days (3-336). Overall, 66% of the patients were discharged. The average Barthel score on discharge was 12.0 points. The average survival after discharge was 808 (0-3669) days. During their stay on the SCU, seven patients died. At 1 year after discharge, 52% of the patients were still alive. These patients suffered less complications, had been admitted less often to a hospital during rehabilitation, had made better functional progress and had been discharged home more often. A survival 41 year after discharge is related to ASIA D (OR 4.3), MRC 4 and 5 (OR 5.4), tumour in remission (OR 3.8) and independence or partial independence on the Barthel items: dressing (OR 4.3) and making transfers (OR 5.0). Conclusions: Patients with epidural metastatic SCC may benefit from in-patient rehabilitation.
It is concluded that physical capacity and performance of ADL improved or remained constant during the first year after rehabilitation and that sport participation is associated with improvements in physical capacity. Results of this study underline the importance of being physically active during the period after rehabilitation of persons with spinal cord injuries.
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